Kia Optima: Description and Operation - Charging System - Engine Electrical System - Kia Optima TF 2011-2020 Service ManualKia Optima: Description and Operation

Description

The charging system includes a battery, an alternator with a built-in regulator, and the charging indicator light and wire.

The Alternator has built-in diodes, each rectifying AC current to DC current.

Therefore, DC current appears at alternator "B" terminal.

In addition, the charging voltage of this alternator is regulated by the battery voltage detection system.

The main components of the alternator are the rotor, stator, rectifier, capacitor brushes, bearings and V-ribbed belt pulley. The brush holder contains a built-in electronic voltage regulator.

1. Brush2. Dirve belt pulley

1. Brush

2. Dirve belt pulley

3. Rotor

4. Stator

5. Rectifier

Alternator Management System

Alternator management system controls the charging voltage set point in order to improve fuel economy, manage alternator load under various operating conditions, keep the battery charged, and protect the battery from over-charging. ECM controls generating voltage by duty cycle (charging control, discharging control, normal control) based on the battery conditions and vehicle operating conditions.

The system conducts discharging control when accelerating a vehicle. Vehicle reduces an alternator load and consumes an electric power form a battery.

The system conducts charging control when decelerating a vehicle. Vehicle increases an alternator load and charges a battery.
Charging System
...

Repair procedures
On-vehicle Inspection Х Check that the battery cables are connected to the correct terminals. ...

See also:

Auto light control
To operate the auto light, turn the knob on the end of the control lever. If you set the knob to УAUTOФ the tail lights and headlights will be turned on or off automatically according to the outs ...

Lumbar support
The lumbar support can be adjusted by pressing the lumbar support switch on the side of the drivers seat. Press the front portion of the switch to increase support, or the rear portion of the sw ...

Air bag non-inflation conditions
Х In certain low-speed collisions the air bags may not deploy. The air bags are designed not to deploy in such cases because they may not provide benefits beyond the protection of the seat belts ...

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